@BOOK{slabook,
   author = {Bianco, Philip and Lewis, Grace A. and Merson, Paulo},
   title = {Service Level Agreements in Service-Oriented Architecture Environments},
   publisher = {Software Engineering Institute},
   year = {2008}
}

@BOOK{bieber,
	author = {Bieberstein and others},
	title = {Service-Oriented Architecture (SOA) Compass: Business Value, Planning, and Enterprise Roadmap (The developerWorks Series)},
	publisher = {IBM Press books},
	year = {2005},
	isbn={978-0131870024}
}

@BOOK{Nicolai,
author = {Josuttis, Nicolai M.},
title = {SOA in Practice: The Art of Distributed System Design},
publisher = {O'Reilly Media Inc.},
year = {2007},
month = {August},
}